Edit a Google BigQuery connection
You can edit a Google BigQuery connection to add tables and columns.
Follow these steps to edit an existing Google BigQuery connection:
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Click Data in the top navigation bar. 
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Click the Connections tab in the left navigation bar. 
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Find the name of the connection. - 
Sort each column: Connection name, Connection type, _Modified (date), or Author. 
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Search on these categories. 
 
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Click the name of the connection. 
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Click Edit connection at the upper-right side of the page. 
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The Select tables page appears. - 
To change the connection name and description, click the Change connection name at the top of the screen. 
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To change the properties of the connection, such as authentication parameters, click the Update connection details option. 
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Click Continue to navigate through the editing workflow. 
   
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After making all the necessary changes, click Update. 
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Click Update to save the updated connection details. 
Editing additional configurations of your BigQuery connection
You can edit any of the additional configurations of a BigQuery connection.
To edit an additional configuration, do the following:
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Select Data in the top navigation bar. 
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Open the Connections tab in the left navigation bar. 
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In the list of connections, find the connection where you want to edit a configuration. 
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At the far right of your connection, click the More menu  , and select Edit configuration. , and select Edit configuration.
Disabling additional configurations of your BigQuery connection
You can disable any of the additional configurations of a BigQuery connection.
To disable an additional configuration, do the following:
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Select Data in the top navigation bar. 
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Open the Connections tab in the left navigation bar. 
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In the list of connections, find the connection where you want to disable a configuration. 
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At the far right of your connection, click the More menu  , and select Disable. , and select Disable.The configuration is greyed out to indicate it is disabled. To enable a disabled configuration, click the More menu  , and select Enable. , and select Enable.You cannot disable the Default configuration of a connection. 
Deleting additional configurations of your BigQuery connection
You can delete any of the additional configurations of a BigQuery connection.
To delete an additional configuration, do the following:
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Select Data in the top navigation bar. 
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Open the Connections tab in the left navigation bar. 
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In the list of connections, find the connection where you want to delete a configuration. 
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At the far right of your connection, click the More menu  , and select Delete. , and select Delete.The configuration disappears from the list of additional configurations. 
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